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emmetapp vs AeroSpace: catalog facts
emmetapp	AeroSpace
Paid Paid app; the price is not listed in the research.	Free Free and open source.
macOS	macOS
Custom screen areas instead of fixed halves and thirds Stacking and cycling of windows per area	i3-style tiling on macOS Keyboard-driven control
macOS only Paid with no free version mentioned	Tiling workflow takes time to learn macOS only
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.